Carolina Wren goes into box with just-laid bluebird eggs

Second time Carolina Wren has gone into my BB house with nestcam since March of this year. Prior incident was on March 6 and the wren basically went crazy! That video is at http://www.youtube.com/watch?v=2umzE5POvmw
Female bluebird just laid 2nd egg this morning. I had live video feed from nest box on my TV and was SHOCKED to see Carolina Wren in box where the eggs are. Based on how the wren acted in March, I was very afraid that the eggs would be destroyed. Thank God the eggs are OK. If you have any insight into this strange Carolina Wren behavior, please email me here.

Category:

Pets & Animals

Tags:

• bluebird
• Carolina Wren

[2bluwings]

No, the Carolina Wren never did have a nest here. I've had the Car. Wrens nest in other boxes in the yard but none close.

[EMILCAT7]

This was hilarious. I could even read the expresion on the wren's face when trespassing the first obstacle (the BB male), and then waiting and even knowing she already screwed it up and her ass was about to be kicked out of the box by the BB female!!

[devereux66]

Wrens are infamous for piercing eggs in nests and flying away with them so they can take over the box. Lost 5 BB eggs 2 years ago to a wren. Now I put cardboard "awnings" over the hole once the first egg has been laid so that the BB is bonded to the nest and will still go in the box with the flap.

[sdmiller100]

Maybe the Carolina wren previously had a nest in this spot and was "freaked out" by a BB laying eggs in his/her territory.

Any ideas?

[dom2651]

Great video...thanks for posting. I have Carolina Wrens in my garage and Bluebirds in my BB houses. I've seen a Titmouse peek in at the BBs, but never a Wren.